Lightwave Community at SimplyLightwave - View Single Post

Mark · 12-02-2004, 08:38 AM

Generally, the refraction index of the lens in your glasses will be that of normal glass (can't think what this is off the top of my head, but there's a handy table in the back of Dan Ablans Simply Lightwave Books). The refraction index should be constant. The prescription value is a measure of the strength of the lens. This link should tell you all you need to know:

http://www.hon.ch/Library/Theme/Visi...tion2.html#2.1

12-02-2004, 08:38 AM	#2
Mark Super Moderator Join Date: Jan 2003 Location: Sunbury, UK Posts: 2,339	Generally, the refraction index of the lens in your glasses will be that of normal glass (can't think what this is off the top of my head, but there's a handy table in the back of Dan Ablans Simply Lightwave Books). The refraction index should be constant. The prescription value is a measure of the strength of the lens. This link should tell you all you need to know: http://www.hon.ch/Library/Theme/Visi...tion2.html#2.1